U.S. doctors online nowAsk doctors free
Erie, CO
A 61-year-old male asked:

Bloodwork showed t4 is 15.5, tsh is .162, i think it was .62, and free thyroxine 5.3, t3 (liothyronine) uptake is normal at 34. i've stopped taking my l thryroine. how fast will the t4 drop? when to retest?

1 doctor answer1 doctor weighed in
Dr. Kenneth Smith
Internal Medicine 34 years experience
Hypothyroidism: Generally retest every six weeks after dosage adjustment. Have you discussed with your physician stopping medication. I do not know your dosage but cessation s opposed to reduction can be problematic.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jan 30, 2013

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.